Method and device for processing DNS (Domain Name Server) business

A business processing, DNS server technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as slowing down of the user's Internet access speed, and achieve the effect of improving experience

Inactive Publication Date: 2013-01-16
HANGZHOU DPTECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can slow down the user's Internet access

Method used

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  • Method and device for processing DNS (Domain Name Server) business
  • Method and device for processing DNS (Domain Name Server) business
  • Method and device for processing DNS (Domain Name Server) business

Examples

Experimental program
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specific Embodiment

[0033] Please refer further image 3 , is another specific embodiment of the DNS service processing method of the present invention, and the method steps are:

[0034] Step 1: Receive the DNS request message sent by the client;

[0035] Step 2: Find the area number of the area where the client is located through the IP range-area correspondence table according to the source IP of the DNS request message;

[0036]Step 3: Check whether the cache record is hit through the zone-domain name-IP correspondence table according to the zone number and the requested domain name. If the IP address in the cache record is generated as a response message, go to step 7; if not, go to step 4;

[0037] Step 4: forwarding the DNS request to the DNS server located at its backend, so that the DNS server can search and return a response message;

[0038] Step 5: Create an index according to the requested domain name and the area number;

[0039] Step 6: Cache the corresponding IP address of the ...

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Abstract

The invention discloses a method and a device for processing a DNS (Domain Name Server) business. The method comprises the steps of receiving a DNS request message sent by a client, searching whether a cache record is hit or not according to the domain corresponding to a source IP (Internet Protocol) of the DNS request message and the request domain name, if so, returning the IP address of the hit cache record to a user through a response message and ending the flow; otherwise, sending the DNS request message to a DNS server, so that the DNS server searches in terms of the DNS request message and returns the response message; caching the IP address corresponding to the response message by taking the domain and domain name as indexes and returning the response message to the user. According to the invention, the defect of slow network speed is solved; and the user experience is greatly improved.

Description

technical field [0001] The invention relates to the field of data network communication, in particular to a method and device for DNS service processing. Background technique [0002] In order to enable people to access the Internet conveniently without remembering the IP number strings that can be directly read by machines, the DNS system is often used. Usually, in order to reduce the pressure on the DNS server, a cache device is added in front of the DNS server, and the cache device replaces the DNS server to respond to most requests. When a client requests the IP of a certain domain name, the caching device configured by the front end of the DNS server first checks the request. If the caching device has the domain name, the corresponding result is directly fetched from the cache and returned to the client; if the caching device If there is no such domain name, the request is forwarded to the backend server, and the server returns the result to the cache device through th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/749H04L29/12H04L45/741
Inventor 邢涛
Owner HANGZHOU DPTECH TECH
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